Needed for builds on NetBSD to work correctly, since it depends on
AC_USE_SYSTEM_EXTENSIONS defining _OPENBSD_SOURCE to expose the
prototype for reallocarray() in the system headers.
cc: @tklausner
Needed for builds on NetBSD to work correctly, since it depends on
AC_USE_SYSTEM_EXTENSIONS defining _OPENBSD_SOURCE to expose the
prototype for reallocarray() in the system headers.
cc: @tklausner